test_fileno(): Skip this test on Windows.

Lib/test/test_urllibnet.py

@@ -84,8 +84,12 @@ class urlopenNetworkTests(unittest.TestCase):
         self.assertEqual(gotten_url, URL)
 
     def test_fileno(self):
+        if (sys.platform in ('win32',) or 
+                not hasattr(os, 'fdopen')):
+            # On Windows, socket handles are not file descriptors; this
+            # test can't pass on Windows.
+            return
         # Make sure fd returned by fileno is valid.
-        if hasattr(os, 'fdopen'):
         open_url = urllib.urlopen("http://www.python.org/")
         fd = open_url.fileno()
         FILE = os.fdopen(fd)